Rotary wire brush



(No Model?) T. G. ROOT.

ROTARY WIRE BRUSH.

' Pat-entedApr. 6,v 1886.

lhhtrrnn Sintes @erica TIMOTHY C. R001", OF ERIE, PENNSYLVANA.

ROTARY WIRE BRUSH.

SFEGIIGATIQN forming part of Letters Patent No. 339,585, dated April 6. 1886. Application filed September-11. Serial *50.176,764. (Nomodel.)

This invention relates to grinding and pol-Y ishing wheels, and particularly to rotary polishing-brushes for cleaning sand or other matter from castings; and it consists in certain 1 improvements in the construction thereof, as will be hereinafter fully Set forth, and pointed out in the claims.

Brushes for cleaning castings are made of steel Wire, generally spring-steel ilat wire. Where such material is made into a rotary or machine brnsh,the Wires have to be much finer than Where the brush is a hand-brush, because z the larger wire will break out ot a machinel shown in Fig. Ll. Other rivets7 et, fasten the brush. The `Wire to stand has to be so small or tine that it very soon mats down.

chinebrush. l have by my improved con struction overcome the difliculties,and am able to make a machine-brush ol." the same-sized wire as hand-brushes are made, and l nd l obtain from such brushes a much better grade of work than can be made with a handbrush or a line-Wire machine-brush, and that it does its Work in much less time.

.ily invention is illustrated in the acconr panying drawings, as follows:

Figure- 1 is a side View of a vmachinebrnsh made in accordance with my invention, the anges B and C (seen in Fig. 8) being.; removed. Fig. 2 is a fragment of the brush in section on the line y in Fig. 3. Fie. is a section ofthe brush on the plane of its axis. Fic. 4 is aseotion vien' of one of the small brushes which go to vform the fullsized brush, taken on the line a in Fig. 5. Fig. 5 is a section view of the same part on the line :r a; in Fig. et. This view is full size, except as to lengt-h of the wire brush.

A is the hub of the brush.

A is the core or centering ofthe hub, the

There fore, it will be seen, great dithculty has been l experienced in making a good serviceable ma l former being of metal and the latter ofwood or metal.

D is the arbor or mandrel on which the brush is mounted. The hub A has flanges c a and connecting-Webs a' a', which form sockets not unlike the spokemortises in a common vehiclehnb.

The brush is made up of a series of dat brushes, E E, which are secured in sockets above named, and they are held in place by wire rods a, which pass through holes in the rims a, and between the layers of material which form the brush-shrinks.

The construction of these flat brushes is the essential feature ol my invention. rIhe Shanks E' are made of liexible material-such as leather or strong` cloth, such as canvas or duck.

Figs. 4 and 5 show the construction of these brushes perfectly. The wires E2 are bent into loops like hair-pins, and laid in bunches between two layers of the flexible material, and rivets e e' are put through the material E, and through and between the bunches, as clearly layers of material E'together at the lower end, and the rods ai pass through between the layers, as seen in Figs. 2, 3, 4,. and 5. These dat brushes, it will be seen, are very exible in their Shanks. Theshanks are, in fact, iiexible Webs or connections between the Wire brush and the hub.

lhave found by actual and continued use that the Wires in these brushes will very seldom break. The brushes last a long time, and do most excellent Work, and do it rapidly. The dang-es B B protectthe sides of the brush and prevent the work being pushed too far against the brush. The iia-nges C C hold the hub in place and keep the rods a? from working out.

W'hat l claim as new is- 1. In a rotary Wire brush, the combination, with the hub and the Wires forming the brush, of a flexible web or shank connecting said wires to the hub, substantially as set forth.

2. In a rotary Wire brush, the combination,4

with the hub and the Wires forming the brush, of a iieXible non-metallic web or shank con necting said wires to the hub, substantially as set forth.

3. In a rotary wire brush, the combination,

IOO

with the hub, of a series of flat brushes contally assoxvn, the (langes B Rand the anges Io sisting of the wire bunches E2 and the flexible C C..

shanksE, holding said bunohes set radially in In testimony whereof I efx my signature iu said hub, substantially as sel; forth. presence of two witnesses.

4. In arotary Wire brush, Iche combination, T Substantially as shown, of -the hub A, with I TIMOTHXL C' ROOT sockets therein, the flat brushes composed of the exible Shanks E', and Wire bunches E2, secured together and to said hub, substzm- Vltnesses:

RoBT. H. PORTER, JNO. K. HALLOOK. 

